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The World's Largest Dungeon

Created by World's Largest RPGs

The World's Largest Dungeon is a 1,600+ page, four-book behemoth megadungeon. Experience the Guinness World Record-winning dungeon crawl like never before - fully updated to 5E of the World's Most Popular Roleplaying Game!

Latest Updates from Our Project:

100k in One Hour!
10 months ago – Tue, May 13, 2025 at 11:07:05 AM

Congratulations, Delvers - We've raised 100k in one hour!



Adventurers of the World's Largest Dungeon: we've shattered our first milestone! Funding in just 2 minutes and raising an astounding $100,000 in just ONE HOUR! Your overwhelming support proves what we already believed - that this legendary megadungeon holds a special place in tabletop history. 

With your backing, we're bringing this massive 1,600-room labyrinth back to life with all the deadly traps and terrifying monsters you remember.

Thank you for joining us on this epic quest... the adventure has only just begun! 

New to Backerkit or Crowdfunding?

Backing The World's Largest Dungeon is simple and risk-free. Your payment will only be processed after our campaign successfully ends. This gives you the flexibility to modify your pledge level or add exciting expansions and accessories before final payment.

Welcome to crowdfunding, adventurer! You're a vital part of bringing this exspansive endeavor to life!
 


We have Pay in Four enabled! BackerKit's Pay Over Time option allows backers pledging $150 or more to split their payment into four monthly installments after our campaign ends.

Here's how it works: When you pledge $150+, you'll see the Pay Over Time option at checkout. Once our campaign successfully ends you'll be charged 25% of your total pledge monthly over four months. Your pledge is confirmed immediately, and you'll receive all rewards alongside other backers once fulfillment begins.
This payment flexibility makes it easier to support at higher tiers while managing your budget effectively.

There's no interest or additional fees, just a more accessible way to back the projects you love! Look for the Pay Over Time option during checkout when pledging $150 or more.
 

Join the community & stay in the know!

Join us on DISCORD at https://discord.gg/JjbxtnEcK8
We'd love to hear from you, answer any questions you might have, and talk more about things like the Secret Doors Volume 1 Contest.

What's next? COMING UP: STRETCH GOALS. Stay tuned for our next announcement!

Thank you all! 

Reserve Now — Get a FREE Set of Dice, Bag, and Coin! 🎲
11 months ago – Mon, Apr 28, 2025 at 04:23:14 PM

The World's Largest Dungeon Launches May 13th

Only a few short days before the return of the World's Largest Dungeon! Everyone who follows the project and then pledges already gets a free Scorch pin. We're excited to introduce yet another way to get awesome bonus loot. You can now reserve your pledge for just $1!

Reserve Now — Get a FREE Mystery Bag! 🎲

Reserve your pledge for $1 and reserve a free mystery bag with your order!
 🎲 A full set of dice
 🪙 A collectible coin
 🎒 A premium dice bag
 🐉 BONUS: A special single d20 from the Boss Dice set!



Reserve Your Spot! Don't Miss Out!

Get a free Mystery Bag when you reserve the World's Largest Dungeon today! To receive this offer, simply place a $1 deposit, and you will be locked in as a VIP. Then, when you back the project on Backerkit, you'll receive a free Mystery Bag (MSRP $20)

Click Here to Reserve Now!

The Mystery Bags contain:

One full set of dice and a bonus d20!


A collectible coin!

And a Scorch dice bag!


All created by our amazing partners at FanRoll Dice!

Why Are We Asking for a $1 Reservation? 
It helps us more accurately forecast demand and production before we launch. This means less risk for us and more exclusive bonus opportunities for you!

Click Here to Reserve Now!



Click Here to Reserve Now!

World's Largest Dungeon announces Secret Doors Volume I
11 months ago – Wed, Apr 09, 2025 at 10:32:49 AM

Amateur Designers Compete for Cash, Publication, and a Place in the World's Largest Dungeon!

Portals to Adventure, in partnership with World’s Largest RPGs and Strange Owl Games, is thrilled to announce the launch of its inaugural Secret Doors Contest, a global competition inviting amateur writers and aspiring game designers to submit original RPG dungeon content for a shot at cash prizes, professional recognition, and publication in the upcoming World’s Largest Dungeon: Platinum Edition.



The contest officially opens April 13, 2025, and is free to enter.

What’s behind your secret door? 

Contestants are challenged to design a creative, 5E-compatible dungeon space that lies hidden behind a secret door: anything from a trapped vault to a forgotten lair, a cursed library, or a portal to a twisted demiplane. Submissions will be voted on by fans, with the top entries winning cash and publication.

“We’re looking for new voices in adventure design,” says PTA team leader Timothy Brown. “If you’ve ever dreamed of becoming a professional RPG writer, this is your chance.”

Prizes and Publication Opportunities

  • 1st Place: 50% of Prize Money Total, Publication, Trophy, Secret -Doors Book
  • 2nd Place: 10% of Prize Money Total, Publication, Trophy, Secret Doors Book
  • 3rd–10th Place: 5% of Prize Money Total each, Publication, Trophy, Secret Doors Book
  • All 20 Finalists: Featured on the site and awarded commemorative ribbons

All winning entries will be published in Secret Doors, Volume 1, an anthology of amateur and professional dungeon entries included with the World’s Largest Dungeon: Platinum Edition, set to release in 2025.
Winning authors will be published alongside TTRPG industry legends, set to be included in the Secret Doors Volume 1, including:
  • Timothy Brown (Dragon Kings)
  • Robert J. Schwalb (Shadow of the Demon Lord)
  • Leamon Crafton (Torg Eternity)
  • Rachel Savicki (Space 1889 After)
  • Patrick Kapera (Krafty Games)
  • Kaitlyn Walden (Thieves’ World)
  • Ian Starcher (Cthulhu Mythos)
  • and many more!

Submission Requirements

To participate, entrants must submit:
  • A written Secret Door adventure (up to 4,500 words)
  • A dungeon map (hand-drawn or digital)
  • A short video introducing themselves and their concept
  • A thumbnail image for fans to see when browsing submissions

Open the Door to Your Future

The Secret Doors Contest is open to international entrants aged 18 and older who have never held a full-time job creating role-playing games. Freelancers and hobbyists are welcome to compete. All submissions must be original and adhere to SRD 5E rules. AI-generated content is strictly prohibited.

Ready to take the leap? Sign up for contest alerts or learn more at www.portals-to-adventure.com

Launch Date Announced!
about 1 year ago – Wed, Mar 12, 2025 at 07:30:43 AM

The World's Largest Dungeon returns May 13th!


📜 The History

Initially published in 2004 by Alderac Entertainment Group (AEG), The World’s Largest Dungeon is a groundbreaking RPG adventure that set a Guinness World Record for its unprecedented size and scope. Featuring every monster from the System Reference Document (SRD), this mega-dungeon campaign takes players from level 1 to 20 in a massive, interconnected underground world. Designed to be an all-in-one, inescapable dungeon experience, it quickly became a legendary challenge among tabletop RPG enthusiasts.

⚔️ World’s Largest RPGs

Now, 20 years later, the Platinum Edition brings this iconic dungeon back to life, fully updated for 5E, with new content, exclusive miniatures, stunning maps, and expanded adventures for a new generation of adventurers.

The Platinum Edition of the World’s Largest Dungeon will launch its crowdfunding campaign on BackerKit on May 13th, 2025. This updated edition will incorporate the latest rules, enhanced editing, and stunning new artwork and maps, all meticulously overseen by our publishing partner, Strange Owl Games.

🏰 The 20th Anniversary Platinum Edition

This edition boasts incredible new features, including:
  • 16 NEW boss miniatures
  • Curated Miniature Sets from Reaper Miniatures
  • 16 poster-sized maps + NEW detail maps
  • Over 1,600 original encounters fine-tuned for modern gameplay
  • Exclusive Fanroll diceAudiobook by AudioRPG
  • NEW stretch goal content
  • Secret Door Encounters featuring guest designers from iconic worlds like Dragon Kings, Fading Suns, Torg Eternity, Thieves' World, and more.The Platinum Edition is a unique opportunity to relive seminal design work from industry legends who have gone on to shape the Fantasy genre landscape such as Robert J. Schwalb (Shadow of the Demon Lord, Warhammer Fantasy) and Richard Farrese (Assassin’s Creed, World of Warcraft). Original lead designer jim pinto returns to the project, entirely redesigning the infamous first level and providing an all new adventure to bring players into the World’s Largest Dungeon.

📚 The Books

The World’s Largest Dungeon is returning in a four-book set, updated for modern play while keeping the original dungeon’s depth and challenge intact: it is easier than ever to navigate the dungeon’s encounters, factions, and secrets.

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🐉 The Minis

Alongside the books, we’re producing 16 boss miniatures to bring some of the dungeon’s most dangerous enemies to life. Here are three from the lineup:

🙊 Secret Door Adventures

A Secret Door Adventure is a self-contained dungeon expansion crafted by a variety of talented RPG authors to add new encounters, lore, and unique challenges to the World’s Largest Dungeon. These adventures introduce unexpected twists, hidden threats, and entirely new ways to experience the dungeon. Industry greats like Timothy Brown (Dragon Kings, Dark Sun), Robert J. Schwalb (Shadow of the Demon Lord, Warhammer Fantasy), and Leamon Crafton (Torg Eternity) are already providing Secret Door Adventures for the campaign.

🏆 An Epic Contest for Aspiring Designers

The campaign introduces a groundbreaking Secret Door Adventures Contest in partnership with Portals to Adventure. Aspiring RPG designers can submit their own dungeon encounters, with fan-voted winners included in the Secret Doors book joining the new contributions from a host of elite creators.

Other World's Largest RPGs Projects

AudioRPGs 

Many of you have expressed that you'd like to stop receiving updates on the World's Largest RPG's AudioBook projects. We heard you and have created a second backerkit account. If you DO want AudioRPG Updates, you should follow us here at https://www.backerkit.com/c/users/2912993/profile